<abstract xmlns="http://www.w3.org/1999/xhtml"> In this paper, structural and photocatalytic properties of TiO2 nanopowders doped with 1 at.% of cerium, cobalt, cooper and iron have been compared. Nanoparticles were synthesized by sol-gel technique and characterized by SEM, EDS and XRD methods. Moreover, their photocatalytic activity was determined based on decomposition of methyl orange. Results were compared with undoped powder. The structural investigations have revealed that all prepared nanopowders were nanocrystalline and had TiO2-anatase structure. The average size of crystallites was ca. 4 nm to 5 nm. The distribution of the dopant was homogenous in case of all manufactured powders. Moreover, for TiO2 doped with Co, Ce and Cu, aggregation effect was not as large as for TiO2:Fe. The results of photocatalytic decomposition showed that self-cleaning activity of all prepared nanopowders was higher as compared to undoped one. Due to the efficiency of these reactions (after 5 hours) nanopowders can be ordered as: TiO2:Co > TiO2:Ce > TiO2:Cu > TiO2:Fe > TiO2.</abstract>

In this paper, structural and photocatalytic properties of TiO2 nanopowders doped with 1 at.% of cerium, cobalt, cooper and iron have been compared. Nanoparticles were synthesized by sol-gel technique and characterized by SEM, EDS and XRD methods. Moreover, their photocatalytic activity was determined based on decomposition of methyl orange. Results were compared with undoped powder. The structural investigations have revealed that all prepared nanopowders were nanocrystalline and had TiO2-anatase structure. The average size of crystallites was ca. 4 nm to 5 nm. The distribution of the dopant was homogenous in case of all manufactured powders. Moreover, for TiO2 doped with Co, Ce and Cu, aggregation effect was not as large as for TiO2:Fe. The results of photocatalytic decomposition showed that self-cleaning activity of all prepared nanopowders was higher as compared to undoped one. Due to the efficiency of these reactions (after 5 hours) nanopowders can be ordered as: TiO2:Co > TiO2:Ce > TiO2:Cu > TiO2:Fe > TiO2.

Influence of doping with Co, Cu, Ce and Fe on structure and photocatalytic activity of TiO2 nanoparticles

Materials Science-Poland

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 License.

Influence of doping with Co, Cu, Ce and Fe on structure and photocatalytic activity of TiO nanoparticles

In this paper, structural and photocatalytic properties of TiO2 nanopowders doped with 1 at.% of cerium, cobalt, cooper and iron have been compared....

Influence of doping with Co, Cu, Ce and Fe on structure and photocatalytic activity of TiO₂ nanoparticles

Publié en ligne: 21 mars 2018

Pages: 725 - 732

Reçu: 25 oct. 2016

Accepté: 24 janv. 2018

DOI: https://doi.org/10.1515/msp-2017-0117

Mots clés
TiO2, Co, Ce, Cu, Fe, photocatalysis

© 2018

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 License.

Influence of doping with Co, Cu, Ce and Fe on structure and photocatalytic activity of TiO2 nanoparticles

Publié en ligne: 21 mars 2018

Pages: 725 - 732

Reçu: 25 oct. 2016

Accepté: 24 janv. 2018

DOI: https://doi.org/10.1515/msp-2017-0117

Mots clésTiO2, Co, Ce, Cu, Fe, photocatalysis

© 2018

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 License.

Influence of doping with Co, Cu, Ce and Fe on structure and photocatalytic activity of TiO₂ nanoparticles

Mots clés
TiO2, Co, Ce, Cu, Fe, photocatalysis